Improved machine for reducing or pointing wires



O. L. HOPSON, H. P. BROOKS & E.-J. MANVILLE.

MACHINE FOR REDUCING 0R POINTING WIRES.

Nq. 52.493. 4 Patented Feb. 6, 1866.

- v UNITE STATES PATENT Qrrics.

ORRIN L. HOPSON AND ELI J. MANVILLE, or wArnnBUnY, AND HEMAN P. BBOOKS, or WOLCOTTVILLE,ASSIGNORS 'ro onnm n. HOPSON,OF WA- TERBURY, nn HEMAN P. BROOKS, or WOLCOTTVILLE, CONNECTICUT.

IMPROVED MACHINE FOR REDUCING OR POlNTlNG WlRES.

Specification forming part of Letters Patent No. 52,493, dated February 6, 1866.

To all whom it may concern;

- Be it known that we,'ORR1N L. Hon-son, of- W'aterbury, in the county of New Haven and State of Connecticut, HEMAN P. BnooKs, of Wolcottville, in the county of Litobfield, and ELI J OSIAH MANVILLE, of Waterbury aforesaid,-have invented, made, and applied to use a certain new and useful Improvement in Machines for Compressing Articles of Metal; and we do hereby declare the following to be afull, clear, and. exact description or our said invention, reference being bad to the annexed drawings, making part of this specification, wherein- Figure 1 is a longitudinal section of our improved compressing apparatus. Fig. Zis an end view of the same. Fig. 3 is a section of one of the dies separately in larger size; and Fig. 4 is a view of the face of the die.

Sim'ilar marks of reference denote the same parts.

Our invention is an improvement upon that for-which Letters Patent were granted to the said Hopso'n and Brooks, August 9, 1864. In the said patent a revolving die is set forth, acted upon by stationary cams to close said die and compress a point or other metallic article.

Our present invention has for its object the compressiou'of articles of metal, such as the ends of rods for wire-drawers, steel rods for forming sewing machine needles,- pointing wires for,.'hatchcl-teeth, cotton-gins, &c., and for producing any other round article of metal capable of being formed by a series of'compressions in a divided die.

In compressing articles of hard materialor of a large size considerable power is required, and the wearing-suriace must he a large extent or it will be quickly-worn away or crushed.

Our invention consists in a series of toggleblocks formed so as ,to act against and close the die with which they come in contact, and

' return to their former position after the said die has passed from contact-with each one successively. We also arrange our die-carrier in such a manner that the revolution thereof will keep the die together by centrifugal force when not in use but in motion, thereby avoiding the noise incident to the use of the machine patented as aforesaid.

We construct our dies in such a manner that the rod or other article to be compressed is I held in a central position to the reducing portion of the die, so that the axis of the reduced portion will he a prolongation of; the axis of the portion that is not reduced.

In the drawings, his a circular stationary ring, within which is the head -block a, that has a hole through its center receiving the shaft b,which is supported atthe opposite end in any suitable box or hearing and revolved by competent power.

In one side-of the shaft 1) is a longitudinal" recess,receiving the moving jaw- 41 on the fulcrum c, which jaw d carries one-half of the divided die 1', and the other halfof the die is set "in'a recess at the end of-the shaft b, so that Piece f metal, and hence the reduction of the metal each time the dies are pressed together will be determined at the same time.

In the -outer end of the jaw d isa circular cavity receiving the small'cyliudcr or pin 0,

upon which the wear comes principally, and "hence the same is to be made of the best and hardest steel, and may be removed when worn out and replaced by another.

In the block a there are recesses receiving the toggle-blocks k, the inner ends of which are fluted to correspond with the pin 0, and the outer ends are formed semicircularly, settin g against and within corresponding recesses in the blocks on. y

l l are adjusting-screws and setrnuts, acting through the ring h upon the blocks m.

In the block a are cavities in which springs n are placed, that tend to press the blocks k toward one side of the cavities in which they are contained, so that as the shaft b revolves and the pin 0 comes in contact-with the ends of these toggle-blocks successively they swing and close the jaw, compressing the piece of metal placed between the dies 23 t, and as the pin 0 continues to move by the rotation of the shaft b the same passes away from the moving end of the toggle-block and its spring throws it back to the normal position to take thejaw when it comes around again.

We haveshown four of, these toggle-blocks k, but a greater or less number might be used, and we employa ring or plate, f,to keep them in place,--ar'id the same may reach" almost to the dies 2 to exclude dust and dirt.

v The dies Mare formed so that the reductionof the metal will been the line of the metal from "which the reduced artioleis formed. We efi'ect this byvmeans of 'a'recess, 1 1, in the die, thatis of the size, or nearly "so, of the wire or rod made use of, and the hole 2 is of the with the adjusting-screw 9, applied vto the op- H size and shape of the needle 'or other article formed by said dies, and the two portions of the die are axial or on -'line with each other, so that the sewing-machine needle shall be formed as a true central elongation of the wire,

employed, and other articles the same way.

If in any character of machinery the block and toggle-blocks could be revolved with the article. to he pointed, then the shaft 11 and die t '1? might stand still. v

' The surfaces exposedto wear are-much larger than in the aforesaid patent, the power to close the jawis very greatybeing derived from a toggle -joint,' and hence the power of the apparatus is increased and the device capable of use in cases requiring considerable power.

What we claim, and desire to secure by Letters Patent, is

1. A series of toggle-blocks, k, mounted 'substantially as specified, in combination with the die 71, shaft b, an'djaw e, substantially as and for the purposes set forth. 2. The combination of the blocks m and screws 1! with the toggleblocks k and die 1' i, as and for the purposes specified. j I 3". The springs n, fitted as specifiethin combination with the toggle-blocks It and die 13, as specified.

"4. The jaw d on the center 0, carrying half the divided die 13 at one end, in combination posite end of the jaw d, as'and for the'pnrposes specified. I

, 5. The cylinder or pin 0, 'in combination with the jaw 11 and toggle or cam blocks 7:,for thepurposes and as specified.

In witness whereof we have hereunto set our signatures this 24th day of June, A. D. 1865.

ORRIN L. HOPSON. HEMAN P. BROOKS. ELI J. MANVILLE. 

